Guard-rail clamp.



PATBNTBD DEC. 17, 1907.

N. 0'. GOLDSMITH.

GUARD RAIL- CLAMP.- APPLIdATmx FILED MAR. 1,9, 1907.

NATHANIEL 0. coLnsmrngor Noawoom PANY, OF CINCINNATI, OH.

M-T MSIGNOR To THE WEIR FROG COM-' -60RPOR,ATION or OHIO.

GUARD-RAI CLAMP.

, Specification of LetterePatentl Patented Dec. 1' 7, 19C)s Application filed March 19. 1907. Serial No. 363,314.

To all whom it may concern:

Be it known that I, NATHANIEL 0. GOLD- SMITH, a citizen of the United States, residin of Hamilton an State of Ohio, have invented certain new and useful Im rovements in Guard-Rail Clamps,

- of which t e following 1s a specification.

My invention relates to an lmprovementin an adjustable guard rail clamp.

The object of my invention is to provide a clamp for securely looking a guard rail to the main rail, in which the cl are formed toiinterlock with each'other, and when wedged together will not become disengaged by the various strains brou ht to bear upon the clamp, and firmly 110 d the same in place vertically, longitudinally and laterally.

Another object of my invention is to provide means for securely holding the clamping members in position with the rail to prevent longitudinal movement of the parts upon thls speci I themselves.

Other features of my invention will be more fully set forth in the description of the accompan ing drawin forming a part of cation, in w ich:

Figure 1 is an end elevation of the clamp in osition for use with the main and guard rai s shown in section. Fig. 2 is a top lan view of the clamp, filling and wedge bloc s in osition as employed. Fig. 3 is a section on me as, m, Fig. 1.

1 represents the main rail.

2 represents the guard rail. 3 re resents a yoke, the jaws 4, 5, of which are inc ined on their inner faces, thereby providing a dove- ,tailed formation, the plain surface forming a-support for the rails, while the angular surfaces form a wedging or gripping surface when the yoke is clamped in position. 6 represents a clamp block shaped to conform to the outline of the rail beneath the head, and

also provided with a beveled face abutting against the jaw 4. 7 represents flange projections formed on said clamp block 6, adapted to overlap the jaw 4 of the yoke to prevent the clamp block from becoming disengaged from its position.

,8,.9, represent filling blocks adapted to lie between the main and guard rails, each provided with an angular meeting surface to permit adjustment corresponding to the width between the rails. These filling blocks are provided with teeth 10, 11, adapted to inter amping members mesh for securely holding the same in position a ainst longitudinaldisplacement, the filling block 9 belng provided with a boss 12 adapted to seat within a recess or bore formed in the guard rail 2, and serving further as a means for preventing longitudinal displacement of the clamping members 8, 9.

13 represents a key block adapted to bear against the outside of the guard rail and provided with the angular face 14 adjacent to the angle of the jaw 5.

15 re resents downwardly projecting lugs adlilpte to overlap. the body portion of the yo e 3.

16 represents lugs adapted to overlap the jaw 5 of the yoke to displacement between t yoke. I

17 represents a boss projecting from the key block 13 and adapted toseat into an orifice formed in the guard rail 2, serving as additional means against longitudinal displacement. I

18 represents a wedge adapted to be driven into grooves formed in the key block 13 and jaw 5 of the yoke .for securely clamping the rails and clampi'n members together. These grooves are slightIy inclined in order to present the wedgein an angular position serving a two fold purpose of lateral and vertical clamping between the blocks and yoke, and yoke and rails.

e key block 13 and 18 through one of which a pin 20 is driven,

which prevents reverse action of the wedge and means for locking the wed e under varying positions to which it might be driven in usage.

l-lavin describedm invention Iclaim:

1. In a guard rail clamp, a yoke, a wed eblock lying adjacent to' one jaw of said yo 0, an angled key-way formed respectively in said wedge-block and adjacent yoke jaw,

and a wedge adapted to be driven into saidkey-way for longitudinally and vertically clamping the parts, substantially as d escribed. I I 2. In a guard rail clamp, a yoke,

and wedge block lying adjacent to the jaws of said yoke, and provided with lugs to overlap said yoke, inner filling blocks lying a clamp revent longitudina'lir revent the wedge from loosening jars and the like, I provide means a series of orifices serve convenient the parts substantiauy as described.

one jaw of the yoke,

formed on said inc ined faces adapted to between the rails to be clamped, the meeting intermesh with each other, a wedge adapted faces provided with serrations, a key way formed respectively in the wedge block and and a wedge adapted key way for clamping blocks, and one jaw of the yoke, and means projecting from the blocks and into the rails, substantially as described.

In testimony whereof, I have hereunto set my hand.

NATHANIEL O. GOLDSMITH. Witnesses:

OLIVER B. KAISER, LEO ODoNNELL.

to be driven into said 3. In a guard rail clamp, a yoke, the jaws of which are inclined upon their inner faces, apair of outer blocks lying adjacent to said jaws, inner blocks lying between the rails to be clamped and outer blocks, provided l with inclined meeting faces, serrations to be driven between one of the outside 15 

